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EN-MC65120 Magnesium vs. C34500 Brass

EN-MC65120 magnesium belongs to the magnesium alloys classification, while C34500 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN-MC65120 magnesium and the bottom bar is C34500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.1
12 to 28
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Shear Strength, MPa 92
220 to 260
Tensile Strength: Ultimate (UTS), MPa 160
340 to 430
Tensile Strength: Yield (Proof), MPa 110
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 590
910
Melting Onset (Solidus), °C 520
890
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 100
120
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
26
Electrical Conductivity: Equal Weight (Specific), % IACS 120
29

Otherwise Unclassified Properties

Base Metal Price, % relative 25
24
Density, g/cm3 1.9
8.2
Embodied Carbon, kg CO2/kg material 25
2.6
Embodied Energy, MJ/kg 190
45
Embodied Water, L/kg 930
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
42 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 140
69 to 160
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 23
12 to 15
Strength to Weight: Bending, points 34
13 to 16
Thermal Diffusivity, mm2/s 56
37
Thermal Shock Resistance, points 9.8
11 to 14

Alloy Composition


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Copper (Cu), % 0 to 0.030
62 to 65
Iron (Fe), % 0 to 0.010
0 to 0.15
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.0
32 to 36.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.4